432 A COMPENDIUM OF 
Epiphyllous—ep’-i-fil’-lus (Gr. ept, upon, and 
phullon, aleaf). Growing or inserted upon 
the leaf. : 
Episperm—ep’-i-sperm (Gr. ¢f1, upon, and 
sperma, aseed), The external covering of a 
seed ; outer coat. i 
Errhine—er’-rin (Gr. errhinon, a medicine 
causing sneezing, from the two words em, in, 
and rhin, the nose). Affecting the nose; to 
cause one to sneeze. 
Esculent—es’-ku-lent (Lat. esculentus, fit for 
_ eating). Suitable for food; fruits and plants 
suitable for food. 
Estivation—es’-ti-va’-tion (Lat. qwsfas, sum- 
- mer). The arrangement of the unexpanded 
leaves of the flower bud which burst in sum- 
mer; opposed to vernation. : 
Etiolation—e’-ti-o-la’-shun (French, e¢io/er, in 
gardening, to grow up long-shanked, delicate 
and colorless) To bleach; to blanch by ex- 
cluding the sun’s rays; to become white. 
Euphorbia—u-for’-bi-a (Gr. euphorbion, a cer- 
tain gum resin from Euphorbus, a Greek 
physician to King Juba). A genus of plants 
of many species. yielding an acrid, milky 
juice; the spurge family. 
Exalbuminous—eks’-al-bu’-mi-nus (Lat. ex, 
out of, and a/bumen). Applied in botany to 
seeds which have no perceptible albumen. 
Exfoliate—eks-fo’-li-at (Lat. ex, out of, and 
folium, a leaf). Toscale off; exfoliation, the 
process of scaling; separation. 
Exogens—eks’-o-jens (Gr. exo, without, and 
gennao, | produce). One of the divisions of 
the vegetable kingdom in which plants grow 
